Crest is a great alternative to the in office whitening without costing the in office price. You can use it on your own time at your own pace which can minimize the effects of sensitivity. There is a noticeable difference within 3 uses.

I love keeping these in the medicine cabinet to use regularly and then before a special occasion! One downside is they sometimes make my teeth sensitive, but it isn't bad enough to make me stop using them.

I asked for these for Christmas b/c I couldn't afford them, and I had my 20 year class reunion coming up this year. Best present ever! Looked great, felt great, had a Fantastic time! Thanks for a Great product!

You will see a difference by using it 3 times. Each time you'll see a slight difference. They don't move around in the mouth so they will feel secure.

Saw a tiny bit of a difference but felt as if the difference wasn't big enough to be worth it for the price. Perhaps if I use it more consistently, my teeth will become whiter in time but these strips are too expensive to use on a regular basis.

I found out the hard way after using these that my teeth are very sensitive and these bothered my teeth. But I've watched my sister use them over the years and her teeth are pearly white, I'm very jealous!

If you're looking to whiten your teeth for a decent price then this is the product. I love using these strips and they are so easy. I recommend trying them out maybe twice a year. They are very effective!!

White strips do the job over time but they are frustrating to use and require you to basically only be whitening, because all I can focus on is the gelly strips on my teeth.

I use these for about a week every few months and have yet to have any issue. Most teeth whiteners leave your teeth really sensitive and these don't, all while still whitening your teeth effectively.

I think that these really work. I can see a difference from before and after using these trips. Pros- it's quick to use. Con- it's slimy. It's effective and it's easy to use and i am satisfied with the outcome